GST Registration Cancellation and Revocation — REG-16, REG-21, the 90-Day Window and GSTR-10

1Two kinds of cancellation

Voluntary cancellation is your own application: the business has closed, turnover has fallen below the threshold, the constitution has changed, or the registration was never needed. You apply, the officer passes an order, and the registration ends.

Suo moto cancellation is the department acting against you — typically for continuous non-filing of returns, or for a registration obtained by fraud or used to issue invoices without supply. You do not apply for it and you may not notice it happening.

The distinction matters for one reason above all: revocation exists only for the second kind. If the officer cancelled your registration, you can ask for it back. If you cancelled it yourself, there is nothing to revoke — you would have to register afresh.

2Cancelling voluntarily — Form REG-16

The application is made in Form GST REG-16 on the portal, within 30 days of the event that made cancellation necessary — the date the business closed or was transferred, for instance.

You must state the reason, the effective date sought, and details of stock held on that date along with the tax payable on it. That last part is the one people skip past, and it is the point of the whole exercise: you cannot walk away holding input credit on stock you bought tax-free.

The proper officer then issues the cancellation order in Form GST REG-19, ordinarily within 30 days of the application.

3When the department cancels — how you find out

Suo moto cancellation does not begin with an order. It begins with a show cause notice in Form GST REG-17, asking why the registration should not be cancelled, and you have an opportunity to reply in Form GST REG-18.

The practical problem is that these arrive on the portal, and a taxpayer who has stopped filing returns has usually stopped logging in as well. The notice goes unanswered, the cancellation follows, and the first anyone hears of it is a customer refusing an invoice because the GSTIN is inactive.

Registration may also be suspended while proceedings are pending, which stops you making taxable supplies in the meantime.

4Revocation — the 90-day window

An application to revoke a cancellation is made in Form GST REG-21 under section 30 of the CGST Act. It is available only where the officer cancelled the registration, not where you did.

The window is 90 days from the date the cancellation order was served. This is the single most misstated fact on the subject: it was 30 days for years, and was extended to 90 days with effect from 1 October 2023. A great deal of guidance still online — and a great deal of advice given from memory — says 30. Acting on the old number can cost a registration that was still recoverable.

Before applying you must clear what caused the cancellation. Where it was non-filing, that means filing all the outstanding returns and paying the tax, interest and late fee due. An application filed with the returns still pending will not succeed.

If the officer is satisfied, the cancellation is revoked by an order in Form GST REG-22, ordinarily within 30 days of the application. If not, the rejection follows its own notice-and-reply route before an order is passed.

5GSTR-10 — the final return that catches people later

Once a registration is cancelled or surrendered, one more return is due: the final return in Form GSTR-10.

It must be filed within three months of the date of cancellation or the date of the cancellation order, whichever is later. It is not GSTR-3B, it is not GSTR-9, and it is not optional.

Its purpose is narrow and specific: to account for the input tax credit on the closing stock — inputs, semi-finished and finished goods, and capital goods — held on the day the registration ended, and to reverse or pay it. You claimed credit on the basis that those goods would be used to make taxable supplies. If you are leaving the system holding them, the credit goes back.

This is where people get hurt long after they thought the matter was closed. The business is shut, nobody is watching the portal, and the late fee accrues quietly on a return nobody remembered was due. If you have cancelled a registration, put GSTR-10 in the diary the same day.

6The order of operations that actually works

• Before applying to cancel: file every pending return, so nothing is outstanding at the moment of cancellation
• Work out the tax on stock held on the effective date — you will need it for REG-16 and again for GSTR-10
• Apply in REG-16 within 30 days of the triggering event, stating the effective date you want
• Wait for the REG-19 order rather than assuming cancellation from the application date
• File GSTR-10 within three months of the cancellation or the order, whichever is later
• Keep the order and the GSTR-10 acknowledgement — proof that the registration ended cleanly

7If the department has already cancelled you

• Check the date the order was served — the 90 days runs from service, not from when you noticed
• File every outstanding return and pay the tax, interest and late fee; revocation will not be granted while they are pending
• Apply in REG-21 within the 90-day window
• If the window has passed, revocation is no longer the route — you are looking at a fresh registration, with a new GSTIN your customers must be told about
• Do not keep issuing tax invoices on a cancelled GSTIN; the supply is not covered and your buyer's credit will not survive

8What cancellation does not do

It does not erase your past. Liability for any period when you were registered survives cancellation, and the department can assess and recover for those periods afterwards.

It does not close proceedings already under way. A cancelled registration does not end an audit, a demand or a pending notice.

And it does not stop the clock on returns due for periods before cancellation. Those remain due, with their late fees, whatever the registration status now says.